Note
Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use and maintenance of any product. Responsibility for the selection, use, and maintenance of any product remains with the purchaser and end-user.

Valve Sizes and End Connection Styles

■2, ■3, ■4, ■6, ■8, ■10, and ■12-inch valve size available in
■wafer or ■single-flanged style
(2-inch available in wafer only)

Maximum Inlet Pressure(1)

Carbon Steel and Stainless Steel Valve Bodies: Consistent with Class 150 and 300 pressure-temperature ratings per ASME B16.34 unless limited by material temperature capabilities. 2-inch size is also consistent with Class 600

Maximum Pressure Drops(1)

Consistent with Class 150 and 300 pressure-temperature ratings per ASME B16.34 except for PTFE, UHMWPE and Phoenix III seals which are derated at some higher pressure-temperature values. Refer to figure 5

Shutoff Classifications

■PTFE, Reinforced PTFE, and UHMWPE (3) Seals: Bidirectional shutoff to Class VI per ANSI/FCI 70-2 and IEC 60534-4. See figure 4.
■2 Inch Metal Seal: Bidirectional shutoff. 0.001% of maximum valve capacity (1/10) of Class IV per ANSI/FCI 70-2 and IEC 60534-4. Maximum Pressure drop is 51 bar (740 psi) forward and 6.9 bar (100 psi) reverse.
■NOVEX Seal: For 3- through 12-inch sizes. Unidirectional shutoff is 0.0001% of maximum valve capacity (1% of Class IV). See figure 4.
■Phoenix III Seal: For 3- through 12-inch sizes. Bidirectional shutoff to Class VI per ANSI/FCI 70-2 and IEC 60534-4. See figure 4. For the optional Phoenix III Fire-Tested seal(2), consult your Emerson Process ManagementTM sales office

Construction Materials

Refer to table 2 for standard material selections and component temperature ranges

Material Temperature Capabilities(1) 

PTFE and Reinforced PTFE Seals: -46 to 232°C (-50 to 450°F)
UHMWPE (3) Seal: -18 to 93°C (0 to 200°F)
2 Inch Metal Seal: -46 to 538°C (-50 to 1000°F)
NOVEX Seal: -46 to 538°C (-50 to 1000°F)
Phoenix III: -46 to 232°C (-50 to 450°F)

Flow Characteristic

Approximately linear

Flow Direction

Refer to figure 6

Flow Coefficients

See table 1, the section titled Coefficients in this bulletin, and also Catalog 12

Flow Coefficient Ratio(4)

100 to 1

Noise Levels

See Catalog 12 for sound pressure level prediction

Disc Rotation

Clockwise to close (when viewing from the drive shaft end) through 90 degrees of disc rotation

Actuator/ Valve Action

With a diaphragm or piston rotary actuator, the valve action is field-reversible. Refer to information provided in the Installation section and figure 6

Valve Classification

Face-to-face dimensions of 3- through 12-inch valve sizes in Class 150 or 300, meets API 609 or MSS-SP68 standards for face-to-face dimensions of wafer-style and single-flange valves
(see figure 8)

Approximate Weights

Mating Flange Capabilities

All sizes compatible with Class 150 and 300, 2-inch also compatible with Class 600, flanges (schedule 80 or lighter, see figure 8,
Dimension M)

Shaft Diameters

See figure 8

ENVIRO-SEAL® Packing

This optional ■PTFE or ■graphite packing system provides improved sealing, guiding, and transmission of loading force to control liquid and gas emissions (see figure 7). See Bulletin 59.3:041 ENVIRO-SEAL Packing Systems for Rotary Valves for more information.

• Exceptional Shutoff—Patented bidirectional soft seal ring with pressure assisting action (see figure 3) results in exceptional shutoff per Class VI.
• Excellent Flow Control—The eccentrically- mounted disc design provides an approximate linear flow characteristic and can be used for throttling or on/off control applications through 90 degrees of disc rotation.
• Sour Service Capability—Trim and bolting materials are available for applications involving sour service. These constructions comply with the recommendations of NACE MR0175-2002.
• Improved Environmental Capabilities—The optional ENVIRO-SEAL packing system is designed with improved sealing, guiding, and loading force transmission. The ENVIRO-SEAL packing system can control emissions to below the EPA (Environmental Protection Agency) limit of 100 ppm (parts per million) for valves.
• Integral Shaft-to-Body Bonding—Standard valve construction includes conductive packing to provide electrical bonding for hazardous area applications.
• Low Cost Maintenance—Individual disc/shaft components can be replaced after disassembly due to sleeve and taper pin connections (see figure 3).

Note
Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use and maintenance of any product. Responsibility for the selection, use, and maintenance of any product remains with the purchaser and end-user.